On Thursday, November 19, Harris who plays Barney in the sitcom said that he has Peet in mind for a guest star. "You know, she's never guest-starred on any shows before and plus, she's already worked with Jason Segel once on 'Gulliver's Travels'," he told E! Online. Segel is Marshall in "HIMYM".

Peet is not the only guest star coming to the show this season. This Monday, November 23, Chris Elliot from "Everybody Loves Raymond" is playing Lily's estranged father who comes for family Thanksgiving dinner. Then there will be Rachel Bilson, Tim Gunn and Stacy Keibler in the 100th episode that airs on January 11.